Self-ligating orthodontic brackets having a safety locking...

A - Human Necessities – 61 – C

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

A61C 7/28 (2006.01) A61C 7/30 (2006.01) A61C 7/12 (2006.01)

Patent

CA 2438236

Self ligating orthodontic brackets include a bracket base, a ligation cover and a special safety locking feature that prevents inadvertent unlocking of the cover. This feature is provided by a ligation cover (150) hingedly attached to the base (144) by a film hinge (162), and a trapezoidal locking tongue (154) that is slidably received within a corresponding angled key way. The movement of the locking tongue is restrained (154) in response to flexation by the cover (150). An arch wire (147) shortens the length of the cover (150) by causing it to bulge upward in the middle relative to the base (144). The surfaces (157, 159) defining the angled key way restrict movement of the locking tongue (154) so that it is necessarily pulled more tightly into the angled key way, resulting in a tighter locking connection between the cover (150) and the base (144).

La présente invention concerne des verrous orthodontiques à auto-ligature comportant une embase de verrou, une coiffe de ligature et un élément de verrouillage sécurisé particulier qui empêche le déverrouillage accidentel de la coiffe. Cet élément est réalisé par la coiffe de ligature (150) articulée à l'embase (144) par une charnière en film (162), et une languette de blocage (154) qui est logée en coulissement au sein d'un logement de clavette incliné complémentaire. Le déplacement de la languette de blocage (154) est limité suite à une flexion de la coiffe (150). Un arc dentaire (147) raccourcit la longueur de la coiffe (150) en la faisant se déformer vers le haut en son milieu par rapport à l'embase (144). Les faces (157, 159) définissant le logement de clavette incliné limitent le déplacement de la languette de blocage (154) de sorte qu'il soit forcément plus fortement tendu dans le logement de clavette incliné, conduisant ainsi à une liaison plus étroite entre la coiffe (150) et l'embase (144).

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Self-ligating orthodontic brackets having a safety locking... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Self-ligating orthodontic brackets having a safety locking..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Self-ligating orthodontic brackets having a safety locking... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1609956

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.